Dry gas-meter.



T. B. WYLIE.

DRY GAS METER.

APPLIUATIOH FILED 00124, 1906.

Patented Apr. 5, 1910.

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Patented Apr. 5, 1910.

TQB. WYLIE.

DRY GAS METER.

APPLICATION FILED 0M. 24, 1906.

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APPLICATION FILED OUT. 24, 1906.

954,239. Patented Apr-5, 1910.

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UNITED STATES PAlTEN T OFFICE.

THOMAS B. WYLIE, OF OSBORNE, PENNSYLVANIA.

DRY GAS-METER.

ToaZZ whom it may concern:

Be it known that I, THOMAS E. \VYLIE, of Osborne, Allegheny county,Pennsylvania, have invented a new and useful Dry Gas Meter, of which thefollowing is a full, clear, and exact description, reference being hadto the accompanying drawings, forming part of this specification, inwhich Figure 1 is a sectional front elevation of my improved meter; Fig.2 is a sectional side elevation of the same; Fig. 3 is a sectional planview; and Fig. 4 is a central vertical section showing one of thebellowsmotors.

My invention relates to the class of dry meters wherein bellows motorsare employed, and is designed to provide a meter of this character whichcan be easily tested and regulated.

It consists in providing a dry gas meter with bellows-motors which areso arranged that the fluid under pressure is supplied to the interiorthereof while the exhaust or discharge passes into the case surroundingthem.

It further consists in making the case independent of the motor faceplates in such combinations, so that it can be removed withoutdisturbing the motors. In this way, the parts may be examined while inopera tion, the case being removed; and the bellows and other parts maybe thus easily tested and regulated.

In the drawings, 2 represents the general case which I have shown asfitting removably into a base 3. Vithin this case and supported byindependent framing composed of an upper flanged plate 29 and a lowerflanged plate 30 connected by flat bars 30, are the working parts of themotor. At the top of the frame-work is carried the valve box 4, thebottom 5 of which forms the valve table. The inlet pipe 6 leads into thetop of this valve case, and within it are provided the usual D valves 7and 8 connected to the links 9 and 10. These links are connected tocranks on the vertical shaft 11 which extends through a stuffing box inthe top of the valve box, and is provided above said box with a crankdriven by links 12 and 13 connected to the usual flag arms or cranks 14and 15. This shaft is also pro vided with worm gear 16 havingconnections to drive the meter dials, shown at 17. These connectionscomprise a crank 17 on the Specification of Letters Patent.

Application fi1ed. October 24, 1906.

Patented Apr. 5, 1910.

Serial No. 340,331.

worm wheel shaft which is arranged to contact with and turn a lever arm18 on a shaft leading through stuffing box 18 to the meter dialmechanism. The meter dial mechanism is secured in its own case which isfastened to the side or face of the general case 2 and is removable withit. Each valve controls three ports leading through the valve table ofwhich the two outer ports are inlets and the intermediate is the exhaustinto the case. The two outer supply and exhaust ports 19 and 20 of eachset are extended downwardly and lead down into diaphragm chambers 21 and22, these being separated by the reciprocating partition or diaphragmplate 23. I provide four of these diaphragm chambers, two for each Dvalve, each provided with the annular flexible diaphragm 23extendingaround it. I have shown these diaphragms as formed of a common piece ofleather or other flexible material, bound in the usual manner on theflanges of the cover plates 21 and 22 and the flanges of the diaphragmplates 23 forming the two chambers. To the edge portion of the partition23 of each motor are fastened the ends of a yoke or U-shaped strap 24 atthe center of which is pivoted the lever 25 secured to the rock shaft26. The cranks or flag arms 1-1 and 15 are secured to these rock shaftswhich act to move the valves and actuate the meter dials. The centraloutlet port 31 for each valve leads down through the valve table andopens into the case, from which the gas or fluid being measured passesout through the pipe 27.

The gas is fed in through the supply pipe (5 into the valve box andpasses through the ports controlled by the D valves into the supplyports for the four chambers. It exhausts from these chambers alternatelyinto the case or body and passes out through the outlet 27.

In testing the apparatus, the entire case is lifted off and the supplypipe is then connected to a source of fluid under pressure. Beforelifting the case, the upper screwthrcaded parts of pipes 6 and 27 whichtelescope within the pipes proper, are withdrawn, and if the pipes aresoldered where they pass through the case, this solder is broken. Theentire working parts may then be examined during the operation of themeter which will of course discharge into the open air during thisperiod. Any leaks in the motors can be easily detected and remedied, andparts may be adjusted to bring them into correct relation. with eachother. On replacing the case, the crank arm on the worm shaft may bebrought into correct relation to the meter dial lever, and the device isready for use. The case is preferably provided with intermediate stops28 which contact with the valve box and the spacing partition 29, andhold the lever 18 in proper vertical relation to its actuating crank 17,by stopping the interior parts in a certain vertical position.

I The vertical posts or bars 30 of the frame are soldered or otherwiserigidly secured to the outer face plates 21 and 22 of the motors, andduring the operation of the device the partitions 23 have thereciprocating movement.

The advantages of my invention result from the use of diaphragm chamberswhich are subject to inlet supply pressure on their interior only anddischarge into the case. By this peculiar arrangement of the motors, Inot only am enabled to give access to them during testing andadjustment, but I also eflectually prevent the diaphragms fromcollapsing inwardly. The entire case except the bottom may be lifted inone part to expose the working parts of the apparatus, the meter dialcase being taken off with the general case.

The base 3 will usually be made as a base only, and the bottom properwill be soldered or otherwise secured to the case 2 after the meter hasbeen proven and tested at the factory. To get access therefore to anypart of the motors or diaphragms, it is only necessary to unsolder ordetach the bot-tom from the outer case, disconnect the inlet pipe, andthen lift off the entire case. This at once gives access to everythingexcept the valves in their box.

Many changes may be made in the form and arrangement of thebellows-motors, valves, etc., without departing from my invention.

I claim 1. In a dry gas meter, a case, a bellows motor having areciprocating diaphragm plate, stationary face plates on opposite sidesthereof and independent of the case, a flexible diaphragm connecting thediaphragm plate to the stationary face plates independent of the case,channels for supplying fluid under pressure successively to both sidesof the reciprocating plate, valve mechanism controlling the supplyfluid, and an exhaust passage leading into the case containing themotor, substantially as described.

2. In a dry gas meter, a case, a pair of bellows motors therein, eachmotor having stationary face plates, a reciprocating diaphragm platelocated between the face plates, a flexible diaphragm connecting theames diaphragm plate to the stationary fac'g/ plates independent of thecase, controlle valves, means connecting the controller valves and thebellows motors,-th e motors having inlet ports leading from the valvesto the interior of the motors, and exhaust ports arranged to feed gasfrom the motors into the case, substantially as described.

3. In a dry gas meter, a pair of bellows motors, each having a pair ofstationary face plates, a reciprocating diaphragm plate between the faceplates and a flexible diaphragm connecting the diaphragm plate to therespective face plates, and a removable case having a single commonchamber c0ntaining both motors and independent thereof, each motorhaving an exhaust port discharging into the case, substantially asdescribed.

4. In a dry gas meter, a pair of bellows motors each having a pair ofstationary face plates, a reciprocating diaphragm plate between the faceplates, and a flexible diaphragm connecting the diaphragm plate to therespective stationary face plates, a removable case having a singlecommon chamber containing both motors and independent thereof, meterdial apparatus secured to the case, detachable dial-driving connectionsand motor-actuated means for driving the dial-driving connections,substantially as described.

5. In a dry gas meter, a pair of bellows with the face plates, thereciprocating diaphragm dividing each bellows motor into two chambers, acase independent of and surrounding the motors, a supply pipe leading tothe interior of each chamber of each motor, means to supply fluidalternately to the pipes, each motor having an exhaust port discharginginto the case, substantially as described.

6. In a dry gas meter, a bellows motor comprising stationary faceplates, a reciprocating diaphragm plate between the face plates, aflexiblediaphragm connecting the diaphragm plate with the respectiveface plates, a case surrounding the bellows motor and separatetherefrom, there being supply passages for the chambers of the motors, avalve controlling the supply of fluid alter nately to the interior ofeach chamber of the motor, a crank connected to the edge portion of thediaphragm plate, an operating connection between the crank and thevalve, substantially as described.

7. In a dry gas meter a case, a pair of bellows motors independentthereof, controller valves, means connecting the controller valves andbellows motors, there being communication from the valves to theinterior of the bellows motors and also from the motors into the ease,the case being removable from the aforementioned parts to give accessthereto, a meter dial mechanism secured to and removable with the case,and a separable drivingconnection between the dial mechanism and amoving part of the meter, substantially as described.

8. In a dry gas meter, the combination with a fluid motor made up of apair of stationary face plates, an intermediate reciproeating diaphragmplate, and a flexible diaphragm connecting the reciprocating plate withthe face plates, of a case inclosing said parts and freely removabletherefrom to expose them, there being communication from a source ofsupply into the motor and also from the motor into the case, valvemechanism for controlling the supply of gas to the motor successively atopposite sides of the reciprocating diaphragm and for control ling thedischarge successively from each side of the reciprocating diaphragminto the case, and valve actuating mechanism con trolled by the motor,substantially as described.

9. In a dry gas meter, the combination with a fluid motor comprisingstationary face plates, an intermediate reciprocating diaphragm plate,and a flexible diaphragm connecting the reciprocating plate with theface plates, of a case inclosing said parts and freely removable toexpose them, there being communication from a source of supply into themotor and also from the motor into the case, valve mechanism controllingthe supply of gas to the motor successively at opposite sides of thereciprocating diaphragm and controlling the discharge successively fromeach side of said diaphragm into the case, valve-actuating mechanismcontrolled by the motor, and registering mechanism carried by andremovable with the case, substantially as described.

10. In a dry gas meter, the combination of a base, a pair of fluidmotors mounted thereon, valveactuating mechanism controlled by themotors, and a casing common to said parts and freely removable from thebase to expose the motors and valve-actuating mechanism, the operatingparts being independent of the case, substantially as described.

11. In a dry gas meter, the combination of a base, a pair of fluidmotors mounted thereon, each motor having a pair of stationary faceplates, an intermediate reciprocating diaphragm plate, and a flexiblediaphragm connecting the diaphragm plate to the face plates, a caseinclosing said parts and freely removable from the base to expose them,there being communication from a source of supply to each motor and alsofrom each motor into the case, valve mechanism for each motor forcontrolling the supply of gas successively to opposite sides of thereciprocating diaphragm plate and for controlling the dischargesuccessively from each side of the diaphragm plate into the case, andvalve-actuating 'mechanism controlled by the motors, substantially asdescribed.

12. In a dry gas meter, a fluid motor having a pair of stationary faceplates, an intermediate reciprocating diaphragm plate, and a flexiblediaphragm connecting the diaphragm plate to the face plates, a caseinclosing the fluid motor independent thereof and freely removabletherefrom, there being communication from a source of supply to themotor and also from the motor to the case, valve mechanism forcontrolling the supply of gas to the motor successively at oppositesides of the diaphragm plate and for controlling the dischargesuccessively from opposite sides of said plate into the case,valve-actuating mechanism controlled by the motor, and registermechanism carricd by the casing and having freely separa ble actuatingengagement with the motor.

13. In a dry gas meter, a double acting fluid motor having a pair ofspaced stationary face plates, an intermediate reciprocating diaphragmplate, a flexible diaphragm connecting the diaphragm plate with the faceplates, a gas-receiving chamber having passages communicating with themotor at opposite sides of the reciprocating diaphragm plate, a casingsurrounding the parts and independent thcreof, there being a passageleading from the gas-receiving chamber into the casing and mechanismincluding a single valve controlling the passages to supply gas to themotor successively at opposite sides of the reciprocating diaphragmplate and to discharge gas successively from opposite sides of thereciprocating diaphragm plate into the casing, substantially asdescribed.

In testimony whereof, I have hereunto set my hand.

THOMAS B. IVYLIE. lVitnesses:

G. B. BLEMING, H. M. CORWIN.

